When going from 500 degrees to room temperature , the extent to which each material expands and contracts is different , this kind of microchip has a kind of strength , but if that strength is not controlled well it will break 从五百度降低到室温,每个材料热胀冷缩的程度不一样,这样芯片里就有了力,这个力控制不好就会造成破坏。
The output module can set the interval of the laser pulse to change from 50ns to < wp = 5 > 3 . 2ms in steps of 50ns , and the frequency from 500hz to 100khz in steps of 1hz . it can control well the spcm and the input module 输出系统能控制单光子发射时间在50ns到3 . 2ms之间步进50ns可调,发射频率在500hz到100khz之间步进1hz可调,并能很好地控制单光子探测器和数据采集系统的工作。
Based on sand control well productivity prediction , the economic effect evaluation and economic index comparison to all feasible methods in the viewpoint of technology are conducted , and optimum sand control method is synthesized and optimized , which is reasonable in technology , and feasible in economy 摘要在防砂井产能预测的基础上,对所有技术上可行的防砂方法进行经济效果评价和经济指标对比,综合优选出技术上合理、经济上可行的最佳防砂方法。